Questions tagged [traffic-filtering]

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Allow VPN-only traffic coming from Router's VPN-client

I have a router with VPN-client feature. The router is connected to VPN server via L2TP/IPSEC. The Windows PC is connected to the router and getting internet traffic from VPN server. All works well. ...
Roman M's user avatar
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how to install ndis on xp with mingw or gcc

I am using xp and I am coding with gcc compiler to code c/c++ programming. The sources I found for installing, all require visual studio. I heard for ndis 5.1 i can install with winpcap, but how can I ...
C.Unbay's user avatar
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Is there a similar WFP method to filter beacons and access point handshakes?

I have been studying Windows Filtering Platform and I can make basic Firewalls with it with windows, but I can only filter Ipv4, Ipv6, and specific ports for example. I want to do the same for ...
C.Unbay's user avatar
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How to separate long uBlock Origin (uBO) static filters (rules) across multiple lines?

I seem to recall that there is a way to separate (continue) long uBlock Origin (uBO) static filters across multiple lines to improve filter readability. I looked through the Wiki and could not find a ...
End Anti-Semitic Hate's user avatar
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How to block everything on Windows 10's firewall and slowly allow the things that I only need?

I've had just about enough with all the spying and resource usage behind my back on my Windows machine, so I've decided to consider the plausibility of first blocking all network traffic and then ...
asgasehswheeshss's user avatar
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Limiting traffic to/from VM

I have a headless Ubuntu VM running on an Ubuntu host. I want to limit the VM's WAN traffic to a specific IP address range only (e.g., 156...), and if servers on that specific IP address range are ...
Adam Mac's user avatar
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1 answer
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Change UDP traffic on the fly. Searching for Network device

I have one specific hardware which generates UDP traffic but due to one single issue inside the UDP data part, another device can't correctly work and skip UDP packets. Please, can you suggest to me ...
Dmitry's user avatar
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How do I filter inbound/outbound traffic based on words?

I need to filter some outbound requests to certain sites based on the request headers and post data. I might be interested in filtering inbound packets as well. They are in plain text (ie not https). ...
Wes's user avatar
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5 votes
1 answer
11k views

Removing stubborn Cisco Content Filter on macOS

I've had a lot of problems with Cisco AnyConnect Socket Filter causing DNS lookups and other stuff to fail. Sometimes I've even had to reboot the Mac in order for my networking to start again. My ...
Henrik Hillestad Løvold's user avatar
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1 answer
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TCPView (Windows) doesn't show any addresses

I'm using TCPView 4.16 for Windows 10 (downloaded from https://docs.microsoft.com/en-us/sysinternals/downloads/tcpview). Up until a few days ago it worked fine, but all of a sudden it simply stopped ...
laurs's user avatar
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Router has no traffic-filter command. eNSP

There was a problem. I built this diagram, indicated IP to each interface. Topology Created an access list. Added a rule to it. I went to the Ethernet 0/0/0 interface and tried to enter the traffic-...
 Bonifacy's user avatar
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Regex char class - more elegant solution

I have two barracuda FWs with different log structure and a Logstash grok filter plugin that needs to parse them. values only log entry +02:00 Info blabla Detect: FWD|TCP|bond0.777|1.1.1.1|53329|...
lord_sommersby's user avatar
1 vote
1 answer
470 views

Packet filtering with the u32 selector does not work

I'm trying to figure out whether the QoS solution I integrated into my RaspberryPI works or not. I found out that port-based traffic classification doesn't work, so I tried to check the filters used ...
Olexandr Kulinich's user avatar
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1 answer
2k views

How Do I Redirect HTTP(S) Requests From a Specific Domain to a Localhost Server?

I currently have a program that requests data from a server (let's say google.com), and gets replies from that same server. This application works on many devices like Android, iOS and Windows. ...
Joe's user avatar
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Filtering out JavaScript while communicating with the server

the community! I am trying to achieve to filter out (or disable) all JavaScript data from the HTML page before delivering it to the browser. Disabling it in the browser doesn't suit me and I need to ...
Maximi's user avatar
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Can Windows 10 firewall be configured to interactively ask permission for outgoing traffic?

I'm rather unfamiliar with the default firewall in Windows 10 Professional. I find many articles on how to configure or finetune it to filter specific traffic (ingoing or outgoing). However what I ...
RocketNuts's user avatar
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ISP Blocking SNI Extension (Server Name Identifier) In Windows 10 But Not Server 2016

Out of curiosity I noticed my ISP (talktalk - UK) was able to block certain websites by the SNI Extention, however only from Windows 10. When attempting to access the same website from Server 2016, it ...
Henry's user avatar
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Internet goes down when I connect the UDP Streaming into the Switch

Team, When I connect the PC-1 ( within the same LAN) I have internet Drop issue. The IP address of the PC-1 is IP (192.168.86.119) Subnet Mask (255.255.255.0) Multicast UDP (238.1.1.1) ...
ka007_stuck's user avatar
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61 views

Block fake users & fake ip addresses from using application

I am facing some issues when it comes to application's traffic & its users. The point is that users tend to sign-up/register on my SaaS application. They use(mostly for wrong purposes) the product ...
Farheen Siddiqui's user avatar
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1 answer
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I can not write normal filter in wireshark filter input

Why I can not write normal filter in wireshark filter input? you see I write the filter: ip.src==192.168.2.228 there seems do not work.
aircraft's user avatar
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1 answer
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How can a port be filtered from one machine and open from an adjacent machine?

On my home network, I am trying to connect all the devices to the new SMTP (port 25) relay at my new ISP. I can connect to the port from 2 separate machines (laptop via wireless lan, raspberry pi via ...
Dennis's user avatar
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0 answers
53 views

How can I prioritize packets coming different source one over another?

I am trying to prioritize a stream of packets over other packets coming into the router. I am running twitch and some other background process (iperf, other youtube live etc.) and I want to prioritize ...
taurenfranklin's user avatar
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67 views

Unblock Google Analytics on all company computers except a few users

We are currently blocking GA in our company using IP filtering. We all share the same IP so exclude this in GA. However, we have an internal sales team that take sales on the phone. We'd like GA to ...
dark_arts's user avatar
3 votes
2 answers
4k views

How can I monitor all activity from only one software with Wireshark?

I would like to know if it is possible in WireShark to monitor ONLY the activity coming from a single software. p.e. if I use CSVpad.exe, how can I monitor all activity from CSVpad?
Reman's user avatar
  • 221
0 votes
1 answer
72 views

Ways to filter http traffic programmatically

How many ways are there to programmatically filter http trafic over device? Not only to capture packets and ban by regex as wireshark but to build a filter that for example requests a page, extracts ...
shegeley's user avatar
7 votes
1 answer
27k views

Configure DD-WRT to Limit Bandwidth on Devices

I have flashed DD-WRT firmware to my TP-Link WRT841-N router, set the basic network configuration & wireless. I want to limit bandwidth on a user who is always using torrents which is causing my ...
Hikmatullah's user avatar
0 votes
1 answer
836 views

What are methods of blocking or redirecting websites in Windows?

What are ways besides the hosts file, that I can redirect or otherwise block websites entirely through the use of software? Malwarebytes Premium is able to redirect websites it detects are bad and ...
Jacob Parker's user avatar
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1 answer
1k views

Qubes Firewall Not Working-Blocking Anything

On Qubes R3.2 I am running an AppVM made off fedora-23 template with the NetVM as the sys.firewall. In the firewall rules I have Deny Network Access except...and have nothing checked and nothing in ...
Sirbasku4's user avatar
0 votes
1 answer
101 views

Why do we even use ad blockers at home when most home routers have filter lists?

I started pretty much like the rest of us with regular ad blocking extensions. But there is arguably a performance drop due to the additional checks each time you load a page. I then started using ...
AdHominem's user avatar
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0 votes
1 answer
597 views

How to I configure iptables for both IP masquerading and firewalling at the same time?

I have a host that acts as a gateway for routing a home network to Internet. IP Masquerading has been enabled for months now and the system has worked fine. How do I configure it to function also as ...
TemperedGlass's user avatar
0 votes
1 answer
140 views

How do we stop or reduce P2P use of the guest Wifi?

I support a small business' tech issues. Their guest Wi-Fi is important since they want people sitting around and consuming their product. We’re currently using a consumer-grade access point with DD-...
uSlackr's user avatar
  • 8,955
1 vote
0 answers
100 views

dir-300 router is able to block any website, but not Facebook [duplicate]

I'm trying to block the access to certain websites using the Website Filter section from Dlink DIR-300 Admin (Firmware 2.14, Hardware Bx which is the latest). It works for any keyword, except for ...
Adrian Iftode's user avatar
0 votes
2 answers
464 views

DD-WRT AP with ethernet bridge

Good evening everyone! I'm looking to host a wifi access point using my DD-WRT (Linksys WRT54G) with a PC running Kali Linux 1.1.0 (Debian) to monitor the traffic. Effectively the traffic would flow ...
JesterBaze's user avatar
1 vote
1 answer
86 views

MAC filtering for Network

I have TP link router and I want to block unwanted users on my network so I used MAC filtering but it has limitation that I can add only 64 users in it to allow on my network but I want to add more ...
Siddharth Mehta's user avatar
3 votes
3 answers
8k views

Alternative to 127.0.0.1 in hosts file

I have a bunch of websites blocked at the system level in my Windows 7 by using the etc/hosts file. So far, I've done it the usual way, by giving 127.0.0.1 as the website's IP address. However, I'd ...
Sundar R's user avatar
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2 votes
0 answers
2k views

How to find out where my https traffic is being blocked

I have a network of machines around the country, connecting via https to a cloud-based server through cellular modems. Only one machine has a problem connecting. When I run nmap -p 443 <server_ip&...
AShelly's user avatar
  • 459
1 vote
1 answer
243 views

Filter squid cached files to multiple cache dirs

I am currently setting up a small home network - I've chosen to go with squid proxy and I am wondering if it is possible to setup a single squid instance with multiple cache_dirs so that different ...
quantum's user avatar
  • 141
0 votes
1 answer
69 views

How can I filter my home network?

I live in an apartment with one roomate. They have a monopoly, as the complex actually has it's own special ISP they offer...and they restrict other, better providers like Verizon, Charter, and so on. ...
John's user avatar
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0 votes
1 answer
1k views

TC command via webpage as a sudo

The main goal- run a tc command via webpage, starting with: tc qdisc del root dev eth0 (deletes all the filters) Following Simple linux commands from a webpage I am trying to add a tc command, but ...
didinino's user avatar
7 votes
1 answer
59k views

pfSense to route between multiple subnets on same LAN

I started with a fairly standard pfSense setup: one WAN and one LAN interface, LAN-to-WAN access via NAT. Now I needed a second logical subnet on the LAN, which I set up in the following way: ...
user149408's user avatar
  • 1,050
1 vote
1 answer
555 views

how to survey and show every single connection from Firefox?

I want to find which files or data is downloaded while loading and interacting on a specific webpage. How do I show every connection attempt from Firefox? I would like to use command line tools (...
erik's user avatar
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1 vote
2 answers
439 views

Bandwidth monitoring grouped by domain/process

Under Windows platform, what is the simplest way to achieve bandwidth monitoring with the following grouping use cases: monitor all incoming/outgoing bandwidth grouped by domain/ip (http requests ...
nazikus's user avatar
  • 265
1 vote
1 answer
912 views

Privoxy: Disable "deanimate-gifs" filter

I'm using privoxy on a debian server and want to disable the privoxy filter deanimate-gifs. I found these instructions to disable it via the web-based toggle feature: Point web browser to http://...
das Keks's user avatar
  • 397
0 votes
1 answer
2k views

Stop Facebook at router?

I would like to limit when we can access Facebook from all our computers/devices. My thought is to put a filter on our router (ASUS N66U w/ stock firmware). I have tried to add a Network Services ...
emd's user avatar
  • 163
2 votes
2 answers
1k views

Drop IP fragments of a certain protocol

When conntrack is active, the iptables stack never sees a fragmented IP packet, only the reassembled one (source), so the -f test never matches. If I want to block any fragment I could set ...
Lorenzo Pistone's user avatar
3 votes
1 answer
3k views

Route between two network interfaces with same IP address?

I would like to temporarily monitor/log/analyze what traffic is going in and out of my home. I would also like to keep my current router configuration unchanged. The router is a WiFi Home Router, so I ...
Johannes Ernst's user avatar
1 vote
2 answers
29k views

What is well-known port number of P2P applications?

I have some trace files (truncated tcpdump file) contains traffic of a network. I want to separate packets of P2P applications such as BitTorrent,Skype,etc. Does any one have a list of well-known ...
SuB's user avatar
  • 766
1 vote
1 answer
1k views

How to blacklist porn? [duplicate]

Is there a way to blacklist sites containing specific keywords? like for example "porn, xxx.. sex". My cheap router can only block 5 specific domains but not sites containing some keywords. Do you ...
MilMike's user avatar
  • 267
2 votes
1 answer
708 views

How can I filter incoming packets to my application?

I have only little experience with Wireshark. The problem is that when my server (3rd party app) receives a faulty packets, it crashes. I would need to filter the incoming packets and filter out such ...
Tuomas's user avatar
  • 23
1 vote
1 answer
2k views

Is there any Base Filtering Engine (BFE) service in Linux similar to windows

In windows we have Base Filtering Engine which helps applications to monitor network traffic. Is there any similar service which runs in Linux too. Something similar to a packet filtering service. I ...
adnan kamili's user avatar